|
1
|
2 |
|
from __future__ import absolute_import |
|
2
|
2 |
|
from __future__ import print_function |
|
3
|
|
|
|
|
4
|
2 |
|
from .xml import ElementTree |
|
5
|
2 |
|
from .constants import oval_namespace as oval_ns |
|
6
|
2 |
|
from .constants import ocil_namespace as ocil_ns |
|
7
|
2 |
|
from .constants import OVALTAG_TO_ABBREV, OCILTAG_TO_ABBREV |
|
8
|
2 |
|
from .constants import OVALREFATTR_TO_TAG, OCILREFATTR_TO_TAG |
|
9
|
|
|
|
|
10
|
|
|
|
|
11
|
2 |
|
def _split_namespace(tag): |
|
12
|
|
|
"""returns a tuple of (namespace, tag), |
|
13
|
|
|
removing any fragment id from namespace |
|
14
|
|
|
""" |
|
15
|
|
|
|
|
16
|
2 |
|
if tag[0] == "{": |
|
17
|
2 |
|
namespace, name = tag[1:].split("}", 1) |
|
18
|
2 |
|
return (namespace.split("#", 1)[0], name) |
|
19
|
|
|
|
|
20
|
2 |
|
return (None, tag) |
|
21
|
|
|
|
|
22
|
|
|
|
|
23
|
2 |
|
def _namespace_to_prefix(tag): |
|
24
|
|
|
namespace, _ = _split_namespace(tag) |
|
25
|
|
|
if namespace == ocil_ns: |
|
26
|
|
|
return "ocil" |
|
27
|
|
|
if namespace == oval_ns: |
|
28
|
|
|
return "oval" |
|
29
|
|
|
|
|
30
|
|
|
raise RuntimeError( |
|
31
|
|
|
"Error: unknown checksystem referenced in tag : %s" % tag |
|
32
|
|
|
) |
|
33
|
|
|
|
|
34
|
|
|
|
|
35
|
2 |
|
def _tagname_to_abbrev(tag): |
|
36
|
|
|
namespace, tag = _split_namespace(tag) |
|
37
|
|
|
if tag == "extend_definition": |
|
38
|
|
|
return tag |
|
39
|
|
|
# grab the last part of the tag name to determine its type |
|
40
|
|
|
tag = tag.rsplit("_", 1)[-1] |
|
41
|
|
|
if namespace == ocil_ns: |
|
42
|
|
|
return OCILTAG_TO_ABBREV[tag] |
|
43
|
|
|
if namespace == oval_ns: |
|
44
|
|
|
return OVALTAG_TO_ABBREV[tag] |
|
45
|
|
|
|
|
46
|
|
|
raise RuntimeError( |
|
47
|
|
|
"Error: unknown checksystem referenced in tag : %s" % tag |
|
48
|
|
|
) |
|
49
|
|
|
|
|
50
|
|
|
|
|
51
|
2 |
|
class IDTranslator(object): |
|
52
|
|
|
"""This class is designed to handle the mapping of meaningful, human-readable |
|
53
|
|
|
names to IDs in the formats required by the SCAP checking systems, such as |
|
54
|
|
|
OVAL and OCIL.""" |
|
55
|
|
|
|
|
56
|
2 |
|
def __init__(self, content_id): |
|
57
|
|
|
self.content_id = content_id |
|
58
|
|
|
|
|
59
|
2 |
|
def generate_id(self, tagname, name): |
|
60
|
|
|
return "%s:%s-%s:%s:1" % ( |
|
61
|
|
|
_namespace_to_prefix(tagname), |
|
62
|
|
|
self.content_id, name, |
|
63
|
|
|
_tagname_to_abbrev(tagname) |
|
64
|
|
|
) |
|
65
|
|
|
|
|
66
|
2 |
|
def translate(self, tree, store_defname=False): |
|
67
|
|
|
# decide on usage of .iter or .getiterator method of elementtree class. |
|
68
|
|
|
# getiterator is deprecated in Python 3.9, but iter is not available in |
|
69
|
|
|
# older versions |
|
70
|
|
|
if getattr(tree, "iter", None) == None: |
|
71
|
|
|
tree_iterator = tree.getiterator() |
|
72
|
|
|
else: |
|
73
|
|
|
tree_iterator = tree.iter() |
|
74
|
|
|
for element in tree_iterator: |
|
75
|
|
|
idname = element.get("id") |
|
76
|
|
|
if idname: |
|
77
|
|
|
# store the old name if requested (for OVAL definitions) |
|
78
|
|
|
if store_defname and \ |
|
79
|
|
|
element.tag == "{%s}definition" % oval_ns: |
|
80
|
|
|
metadata = element.find("{%s}metadata" % oval_ns) |
|
81
|
|
|
if metadata is None: |
|
82
|
|
|
metadata = ElementTree.SubElement(element, "metadata") |
|
83
|
|
|
defnam = ElementTree.Element( |
|
84
|
|
|
"{%s}reference" % oval_ns, ref_id=idname, source=self.content_id) |
|
85
|
|
|
metadata.append(defnam) |
|
86
|
|
|
|
|
87
|
|
|
# set the element to the new identifier |
|
88
|
|
|
element.set("id", self.generate_id(element.tag, idname)) |
|
89
|
|
|
# continue |
|
90
|
|
|
if element.tag == "{%s}filter" % oval_ns: |
|
91
|
|
|
element.text = self.generate_id("{%s}state" % oval_ns, |
|
92
|
|
|
element.text) |
|
93
|
|
|
continue |
|
94
|
|
|
if element.tag == "{%s#independent}var_ref" % oval_ns: |
|
95
|
|
|
element.text = self.generate_id("{%s}variable" % oval_ns, |
|
96
|
|
|
element.text) |
|
97
|
|
|
continue |
|
98
|
|
|
if element.tag == "{%s}object_reference" % oval_ns: |
|
99
|
|
|
element.text = self.generate_id("{%s}object" % oval_ns, |
|
100
|
|
|
element.text) |
|
101
|
|
|
continue |
|
102
|
|
|
for attr in element.keys(): |
|
103
|
|
|
if attr in OVALREFATTR_TO_TAG.keys(): |
|
104
|
|
|
element.set(attr, self.generate_id( |
|
105
|
|
|
"{%s}%s" % (oval_ns, OVALREFATTR_TO_TAG[attr]), |
|
106
|
|
|
element.get(attr))) |
|
107
|
|
|
if attr in OCILREFATTR_TO_TAG.keys(): |
|
108
|
|
|
element.set(attr, self.generate_id( |
|
109
|
|
|
"{%s}%s" % (ocil_ns, OCILREFATTR_TO_TAG[attr]), |
|
110
|
|
|
element.get(attr))) |
|
111
|
|
|
if element.tag == "{%s}test_action_ref" % ocil_ns: |
|
112
|
|
|
element.text = self.generate_id("{%s}action" % ocil_ns, |
|
113
|
|
|
element.text) |
|
114
|
|
|
|
|
115
|
|
|
return tree |
|
116
|
|
|
|
ComplianceAsCode /
content
